DDIC LEDs
The DDIC supports LFF 3.5" and SFF 2.5" disks. The following figure shows the top panel of the DDIC as viewed when the disk is aligned
for insertion into a drawer slot.
Figure 36. LEDs: DDIC – 5U enclosure disk slot in drawer
1. Slide latch (slides left) 2. Latch button (shown in the locked position)
3. Drive Fault LED
Table 19. DDIC LED descriptions
Fault LED (Amber) Status/description*
Off Off (disk module/enclosure)
Off Not present
Blinking: 1s on/1s off Identify
Any links down: On Drive link (PHY lane) down
On Fault (leftover/failed/locked-out)
Off Available
Off Storage system: Initializing
Off Storage system: Fault-tolerant
Off Storage system: Degraded (non-critical)
Blinking: 3s on/1s off Storage system: Degraded (critical)
Off Storage system: Quarantined
Blinking: 3s on/1s off Storage system: Offline (dequarantined)
Off Storage system: Reconstruction
Off Processing I/O (whether from host or internal activity)
*If multiple conditions occur simultaneously, the LED state will behave as indicated by the condition listed earliest in the table, as rows
are read from top to bottom.
Each DDIC has a single Drive Fault LED. A disk drive fault is indicated if the Drive Fault LED is lit amber. In the event of a disk failure, follow
the procedure in Replacing a DDIC in a 5U enclosure.
Controller module and IOM LEDs
NOTE:
Controller module and IOM CRUs are common to the 2U and 5U84 enclosures.
• For information about controller module LEDs, see 12 Gb/s controller module LEDs.
• For information about IOM LEDs, see Expansion enclosure IOM LEDs.
Troubleshooting 2U enclosures
The following sections describe common problems that can occur with your enclosure system, and some possible solutions. For all of the
problems listed in the following table, the Module Fault LED on the Ops panel will light amber to indicate a fault. All alarms also report using
SES.
Troubleshooting and problem solving
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